We express our deep gratitude to Dr. Sierra for his high professionalism in knowing her business in the field of vision and eye treatment. We strongly recommend the clinic and Mercy Hospital with professionals in their clinic Dr. Serra she diamond, we put not 5 stars, but 10 and recommend to everyone. Thanks

Dr. Sierra is one of finest & brilliant Eye Surgeons in Sacramento. She saved my wife's vision by performing timely cornea surgery. She also performed cataract surgery on my both eyes. I feel great after the surgery. She is kind & caring: & patiently answers all our queries. We are fortunate to have her as our opthalmologist. I highly recommend her👍

Dr. Sierra is an incredible and talented ophthalmologist. She is extremely intelligent and professional, yet friendly and compassionate with an unwavering dedication to her patients and their specific needs. I had a traumatic experience in the past with a complex eye surgery so I was extremely nervous and anxious when I was referred to her. Dr. Sierra listened to my concerns and my fears and immediately made me feel comfortable and confident that the surgery she was going to perform would be successful. She was right. Although my surgery was very complex, she made sure I was comfortable and completely pain free., and the surgery was a success. I would trust her with my life and highly recommend her to anyone looking for an outstanding eye surgeon!